package com.sunk.springcloud.controller;

import com.sunk.springcloud.entities.CommonResult;
import com.sunk.springcloud.entities.Payment;
import com.sunk.springcloud.lb.LoadBalancer;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cloud.client.ServiceInstance;
import org.springframework.cloud.client.discovery.DiscoveryClient;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.*;
import org.springframework.web.client.RestTemplate;

import javax.annotation.Resource;
import java.net.URI;
import java.util.List;

/**
 * @Auther: Sunk
 * @Date: 2020/3/13 16:57
 * @Description:
 */
@RestController
@Slf4j
public class OderController {
//    public static final String PAYMENT_URL = "http://localhost:8001";
    public static final String PAYMENT_URL = "http://CLOUD-PAYMENT-SERVICE";

    @Resource
    private RestTemplate restTemplate;

    @Autowired
    private DiscoveryClient discoveryClient;

    @Autowired
    private LoadBalancer loadBalancer;

    @PostMapping("/consumer/payment/create")
    public CommonResult<Payment> create(@RequestBody Payment payment){
        return restTemplate.postForObject(PAYMENT_URL+"/payment/create",payment,CommonResult.class);
    }

    @GetMapping("/consumer/payment/get/{id}")
    public CommonResult<Payment> getPayment(@PathVariable("id") Long id){
        return restTemplate.getForObject(PAYMENT_URL+"/payment/get/"+id,CommonResult.class);
    }

    @GetMapping("/consumer/payment/getForEntity/{id}")
    public CommonResult<Payment> getPayment2(@PathVariable("id") Long id){
        ResponseEntity<CommonResult> entity= restTemplate.getForEntity(PAYMENT_URL+"/payment/get/"+id,CommonResult.class);

        if(entity.getStatusCode().is2xxSuccessful()){
            return entity.getBody();
        }else{
            return new CommonResult<>(444,"操作失败");
        }
    }

    @PostMapping("/consumer/payment/create2")
    public CommonResult<Payment> create2(Payment payment){
        ResponseEntity<CommonResult> entity = restTemplate.postForEntity(PAYMENT_URL + "/payment/create", payment, CommonResult.class);
        if(entity.getStatusCode().is2xxSuccessful()){
            return entity.getBody();
        }else{
            return new CommonResult<>(444,"操作失败");
        }
    }
    @GetMapping("/consumer/payment/lb")
    public String getPaymentLB(){
         List<ServiceInstance> instances = discoveryClient.getInstances("CLOUD-PAYMENT-SERVICE");
        if(instances ==null || instances.size()<=0){
            return null;
        }else{
            ServiceInstance serviceInstances = loadBalancer.instances(instances);
            URI uri=serviceInstances.getUri();
            return restTemplate.getForObject(uri+"/payment/lb",String.class);
        }

    }



}
